Thumpalumpacus
Major
Just thought I might add, I've read that at the very end of the war the Germans were starting to include B&Z in their aviation doctrine.
I think both sides had started to do that. Certainly the SE5a favored that approach too, and remained active up to the Armistice. Both sides also kept turners in the pipeline, too -- the Fokker DVIII and the Sopwith Snipe were both much more corkscrew than dagger.
I don't think the debate was settled with WWI experience, is my only point.